An aperiodic set of 11 Wang tiles

Infection with the protozoan Toxoplasma gondii is one of the most frequent parasitic infections worldwide. This obligate intracellular parasite was first described

A way to fill in the cells of 3 × 3-matrix with 9 real numbers is called a magic square if sums of numbers in all rows are pairwise equal, and equal to sums of numbers in all

In fact, we prove that polite scanning strategies, the ones Wang automata are based on, are essentially only those following four kinds of movements, and their rotations

The sides of a tile may be colored with an input (i.e. the right part of an application term) or with a function (i.e. the left part of an application term) or with an output

As a final comment, we emphasize that simplicial LS-category is a new strong homotopy invariant, defined in purely combinatorial terms, that generalizes to arbitrary

In the edge coloring (or Wang tiles) of a plane, unit squares with colored edges that have one of p colors are arranged side by side such that the touching edges of the adjacent

The Domino problem is the following decision problem: given a finite set of Wang tiles, decide whether it admits a tiling.. Theorem 1

State transfer faults may also be masked, though to mask a state transfer fault in some local transition t of M i it is necessary for M to be in a global state that leads to one or